Certified · 15+ Years ECU + Module Programming

Mercedes AAM & DAS Valet Key by Mail — ML W163, SLK R170, SL R129, S W140, G-Class & More

A working start-only key for the Mercedes the dealer gave up on — ML320/ML430, SLK, SL, W140 S-Class, G-Wagen and more. Ship the AAM or DAS immobilizer box and we program the key to it.

$250 flat24-Hour Bench TurnaroundFlat-rate return shipping

Sending several modules? Add them all — one box, one return-shipping charge.

Text Before You Buy

ML W163 (AAM) · SLK R170 1996-2004 · SL R129 1997-2001 · S-Class W140 1997-1999 · G-Class W461 1997-2001 · A W168 / Vaneo W414 (Euro imports)

How It Works

Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.

Mercedes AAM module open on the electronics bench
1

Pay & Get Address

Click "Order Now", pay securely via Stripe. We email shipping address + instructions within minutes.

Mercedes module detail
2

Ship Your Module

Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Customer pays shipping to us.

Key programming station
3

Receive in 1-2 Days

Work completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.

What You Get

  • A start-only transponder key programmed to YOUR AAM or DAS module
  • Blade precision-cut from your door lock decode (or copied from a working key)
  • All-keys-lost handled at the same flat price
  • Your module, lock and old keys returned with the new key
  • Bench-verified before anything ships back
  • 24-hour bench turnaround after your parts arrive

Compatibility

Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.

AAM trucks

ML320 / ML430 / ML500 / ML55 AMG (W163, 1998-2005)

DAS classics

SLK 230 / 320 / 32 AMG (R170, 1996-2004)SL 320 / 500 / 600 (R129, Jun 1997-2001)S-Class (W140, Jun 1997-1999)G-Class (W461, Jun 1997-2001)A-Class W168 / Vaneo W414 (European imports)

Scenarios

All keys lostSpare start-only keyUsed AAM/DAS module needs keysWorn key that reads intermittently

Will This Fix My Problem?

Honest answer: here's exactly what this service fixes — and what it doesn't.

Fixes:

  • All keys lost on an ML, SLK, SL, W140 or G-Wagen
  • Dealer quotes hundreds — or says the key is no longer available
  • Bought a classic Mercedes that came with one worn key or none
  • Key turns but the immobilizer refuses to authorize a start
  • Replaced the AAM or DAS module and nothing starts the car

Won't fix:

  • Want remote lock/unlock buttons? The classic remote key service is $375 — same parts shipped
  • Module is dead, no-start with a KNOWN-good key? That is the $299 AAM/DAS repair service
  • 2000s+ EIS/FBS3 cars (chrome SmartKey fob) — see our Mercedes EIS key programming service
  • Mechanical ignition or door lock cylinder failures

The era Mercedes forgot

These cars sit in a gap: too old for the dealer's key systems to support gracefully, too new to run without an immobilizer. The fix is going to the module itself — the AAM behind the ML's dash, the DAS/SKREEM unit on the classics — reading its memory on the bench, and generating a key the module already trusts. No dealer authorization involved, because nothing is being looked up: your own module is the source of truth.

Shipping Instructions

These details are also emailed to you the moment your payment clears.

Ship the immobilizer module — the AAM on a W163 ML, the DAS/SKREEM unit on the classic cars (text your VIN FIRST and we tell you exactly which box and where it lives). For all-keys-lost also ship the driver's door lock so we can decode and cut the blade; if you still have a working key, ship that instead and skip the lock. Ship to PO Box 120241, Arlington TX 76012 (USPS) or 1009 Oakwood Ln # 120241, Arlington TX 76012 (UPS/FedEx). Return shipping is selected and paid at checkout — Standard $24.95, UPS 2-Day $54.95, or UPS overnight $94.95.

What to include in your box

  • The AAM (W163 ML) or DAS/SKREEM immobilizer module (classics) — we confirm by VIN before you ship
  • All keys lost: the driver's door lock (we decode it to cut the new blade)
  • Any existing keys, working or not
  • VIN + year, and a printed order confirmation
  • Your name, return address, and phone number

Ship to

Auto Module Lab

If shipping USPS

PO Box 120241
Arlington, TX 76012

If shipping UPS or FedEx

1009 Oakwood Ln # 120241
Arlington, TX 76012

Both shipping labels — to the lab and back to you — are purchased the moment you order. Your prepaid inbound label (already addressed) arrives by email; the return ships on the speed you chose at checkout.

Frequently Asked

Still have a question? Text us — replies in minutes.

Which module do I send?
On the W163 ML-Class it is the AAM — the All Activity Module. On the classic passenger cars (R170 SLK, R129 SL, W140 S, W461 G) it is the DAS/SKREEM immobilizer unit. Text your VIN first and we tell you exactly which box your car uses and where it is mounted, with pull instructions, before you take anything apart.
Why do you need my door lock for all-keys-lost?
The new key needs a cut blade and there is no key code to look up on cars this age — the cut lives in your locks. We decode the driver's door lock on the bench and cut the blade to match. If you still have any working key, ship that instead and we copy its cut — no lock needed.
Is all-keys-lost extra?
No — $250 flat includes all keys lost. That is the normal situation for this service; owners with healthy keys rarely find us.
My ML cranks but will not start and the key is fine. Is this the right service?
Probably not — a known-good key with a no-start points at the AAM itself failing, which is our $299 AAM/DAS repair service. Text us the symptoms and VIN and we will point you at the right one before you order.
Does this cover my 2006 SLK or 2003 E-Class?
No — those are EIS/FBS3-era cars with the chrome SmartKey fob, which is a different architecture we also service: see the Mercedes EIS key programming and EIS cloning services. This page is for the earlier AAM/DAS generation.

Related Services

Other bench services for the same brand or use case.

Where we serve Mercedes AAM / DAS Valet Key (ML, SLK, SL & More)

Mail-in means nationwide. See your state, metro, or specific vehicle:

Ready to ship?

Pay now, get the shipping address by email, drop it in the mail. Your module is back on your bench within a week.

(817) 678-3252